FPI CI2700 Manual page 163

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
RESEARCH TRIANGLE PARK, NC 27711
Mr. Justin White
Hearthstone QHPP, Inc.
#17 Stafford Ave.
Morrisville, VT 05661
Dear Mr. White,
FEB
2 8
2018
OFFICE OF
AIR QUALITY PLANNING
AND STANDARDS
I am writing in response to your letter dated January 12, 2018, regarding wood heaters
manufactured by Hearthstone QHPP, Inc. (Hearthstone). This response, dated February 28, 2018,
supercedes our previous response ( dated February 26, 2018) to correct an inaccuracy regarding
required changes to ASTM E3053-17.
You are requesting to use an alternative test method, using cord wood, as referenced in section
60.532(c) of 40 CFR part 60, Subpart AAA, Standards of Performance for New Residential
Wood Heaters (Subpart AAA) to meet the 2020 cord wood alternative compliance option. The
2020 cord wood alternative compliance option states that each affected wood heater
manufactured or sold at retail for use in the United States on or after May 15, 2020, must not
discharge into the atmosphere any gases that contain particulate matter in excess of 2.5 g/hr.
Compliance must be determined by a cord wood test method approved by the Administrator
along with the procedures in 40 CFR 60.534. You have requested approval to use the procedures
and specifications found in ASTM Method E3053-17, a cord wood test method titled, "Standard
Test Method for Determining Particulate Matter Emissions from Wood Heaters using Cordwood
Test Fuel," in conjunction with ASTM E2515-1 l and Canadian Standards Administration (CSA)
Method CSA-B415.1-10, which are specified in 40 CFR 60.534.
We understand that Hearthstone is also requesting that the alternative method proposed above be
approved to apply broadly to all wood heaters manufactured by Hearthstone meeting the
requirements of Subpart AAA, from the approval date of this request until such time that Subpart
AAA is revised or replaced to require a different cord wood certification method, providing all
requirements of section 60.533 of Subpart AAA are met.
With the caveats set forth below, we approve your alternative test method request for certifying
wood heaters using ASTM E3053-17 in conjunction with section 60.534 of Subpart AAA to
meet the 2020 cord wood compliance option until such time that Subpart AAA is revised or
replaced to require a different cord wood certification method. We also approve application of
this alternative method to all wood heaters manufactured by Hearthstone meeting the
requirements of Subpart AAA.
Internet Address (URL)• http://www.epa.gov
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